Double-Glazed Windows - Secondary Glazing
Double-glazed casement windows are a highly popular choice for homeowners across London and the South East. These windows are hinged on one side, opening outward like a door, which allows for excellent ventilation. The term "double-glazed" refers to two panes of glass that are separated by a layer of air or inert gas. This design creates an effective barrier against heat loss and external noise, making your home more comfortable and energy-efficient. Casement windows are often chosen for their simplicity, functionality, and sleek aesthetic.
Double glazing is an advanced window system designed to improve insulation. Unlike single glazing, which uses just one pane of glass, double glazing utilises two panes. The gap between the panes, often filled with argon gas, acts as a thermal buffer, slowing down the transfer of heat between the inside and outside of your home. A-rated double glazing is the highest standard of energy efficiency available in the market, meaning these windows not only reduce heat loss but can also cut down on energy bills.
Benefits of Double Glazing
Choosing double-glazed casement windows provides numerous advantages. First and foremost, these windows offer significant thermal efficiency, keeping your home warmer in the winter and cooler in the summer. This can lead to noticeable reductions in your energy consumption. Double glazing also enhances security, with strong, robust glass and frames providing greater protection against break-ins. Additionally, double glazing reduces external noise, which is a great benefit for those living in busy areas such as London. Beyond these functional advantages, double-glazed casement windows also add to your home's aesthetic appeal, increasing its overall market value.
Can Double Glazing Save You Money?
Yes, installing A-rated double glazing can result in substantial savings on your energy bills. By preventing heat from escaping your home, you reduce the need for constant heating, especially during the colder months. Over time, the energy savings can offset the initial investment in double-glazed windows. This is particularly important as energy costs continue to rise. For those considering selling their property, double glazing is a feature that can add value and attract buyers who are increasingly conscious of energy efficiency.
Are Double Glazed Casement Windows Easy to Maintain?
One of the key benefits of double-glazed casement windows is their ease of maintenance. Modern materials such as uPVC and aluminium, commonly used by Thames Windows and Doors Ltd., are durable and resistant to wear and tear. These windows do not warp, rot, or corrode over time, meaning they require little upkeep. Cleaning double-glazed windows is simple—just wipe them down with soapy water to keep them looking pristine. Additionally, A-rated glazing reduces the likelihood of condensation forming, which means fewer issues with moisture or mould buildup.
Why choose Thames Windows and Doors Ltd.?
Thames Windows and Doors Ltd. is a trusted name in the glazing industry, serving London and the South East with high-quality, A-rated double glazing solutions. We pride ourselves on delivering excellent customer service and providing bespoke glazing solutions tailored to our clients' needs. Whether you’re looking for double-glazed casement windows or secondary glazing for listed buildings, our team has the expertise to ensure your home is more energy-efficient and secure. We also offer a range of products, including flush casement windows, sash windows, and doors, making us your one-stop-shop for all glazing needs.
Choose Thames Windows and Doors Ltd to enhance your home’s comfort, appearance, and energy efficiency. Contact us today for a free consultation and see how we can transform your home with our state-of-the-art glazing solutions.
Secondary Glazing Designs
See Images of secondary glazing options we can offer, to suit all types and styles of windows

Horizontal Sliding

Vertical Sliding

Hinged

Tilt Sash

Lift Out
